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Finding the Fourth Proportional to 633,825.69, 874,686.33 and 347,339.64

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Solution

The fourth proportional to 633,825.69, 874,686.33 and 347,339.64 is: 479,332.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,825.69 : 874,686.33 = 347,339.64 : x
  2. Step 2: Convert to fraction form
    633,825.69/874,686.33 = 347,339.64/x
  3. Step 3: Cross multiply
    633,825.69x = 874,686.33 × 347,339.64
  4. Step 4: Simplify right side
    633,825.69x = 303,813,234,975.12
  5. Step 5: Solve for x
    x = 303,813,234,975.12/633,825.69
  6. Step 6: Final answer
    x = 479,332.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.